Question

Write an equation of aline passing through the point representing solution of the pair of linear equatins x + y = 2 and 2x - y = 1. how many such lines can we find?

Answer 1

Solving x+y=2 and 2x-y=1

X+y=2
2x-y=1
..............
3x=3
Therefore equation is
X=1


Since a1/a2 is not equal to b1/b2
ie 1/2 is not = 1/-1

Therefore there is no other equation....

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